The Siemens 3VA1180-5GF42-0AA0-ZD00 is a 4-pole molded case circuit breaker in the 3VA1 IEC frame 160 series, rated 80 A with a breaking capacity class M — Icu of 55 kA at 415 V. That 55 kA figure means it can safely interrupt a fault current up to that level without welding contacts or cascading upstream, which is the spec that decides whether it holds on a high-fault panelboard or trips into a coordination study. Overload protection is adjustable via the TM240 thermal-magnetic trip unit: Ir from 56 A to 80 A, so you set it to the continuous load without swapping the breaker body. Short-circuit pickup Ii is fixed at 5 to 10 times In, giving a 400–800 A magnetic trip window — tight enough for motor inrush on a pump or conveyor, wide enough to avoid nuisance trips on transformer energization.
Integration notes
Mounts in a standard IEC frame 160 panel cutout or DIN-rail adapter (not included). The 4-pole footprint occupies the same width as a 4-module MCCB — plan for 140 mm of DIN space per unit. The TM240 trip unit is field-adjustable for Ir, but Ii is fixed at the factory; verify the magnetic pickup window against your load's inrush before committing the BOM. The nut keeper kit is pre-installed for DC Power OEM applications — no additional hardware needed for the DC-side termination.